5 is give an area of responsibilty shaped thus.
5 would start behind the zone and generally on the weak side.

5 looks for the hole in the zone and pops to the hole.

5 would stay on the opposite side to the 3 and 4 player.

3 and 4's area is shaped as shown.If 3 goes low then 4 pops high to the free throw area.

The free throw area is extremely important to the entry pass.

Either 3 or 4 when occupying the high post position must be side on to the basket and not facing away.

If 3 or 5 receives the ball at the low post 4 cuts from high to low and 3 or 5 replace.

1 dribbles to make the zone react.If 1 dribbles low 2 cuts high to reverse the ball